scholarly journals Internal Astigmatism and Its Role in the Growth of Axial Length in School-Age Children

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
Liangcheng Wu ◽  
Chenghai Weng ◽  
Fei Xia ◽  
Xiaoying Wang ◽  
Xingtao Zhou
Keyword(s):  
Risk Factor ◽  
Linear Regression ◽  
Primary School ◽  
Axial Length ◽  
Regression Line ◽  
School Age Children ◽  
School Age ◽  
Paired Samples ◽  
The Difference

Objectives. To explore the role of internal astigmatism (IA) in the growth of axial length (AL) in school-age children. Methods. Total astigmatism (TA), corneal astigmatism (CA), and AL of all children in Jing’an District 2nd Centre Primary School in Shanghai were measured. In IA, the difference between TA and CA was also calculated using vector analysis. The association of axial length with IA, genders, and age was analyzed using linear regression. The difference of IA between both eyes was also calculated. The AL between both eyes was compared using paired samples t-test when DIA = 0 D, <0.5 D, and ≥0.5 D. Results. Six hundred and twelve cases (98.23%) in 623 children aged 7–12 yrs older entered into the study. Genders, age, and IA all affected AL. This could be represented by a linear regression line in the form AL = 21.46 − 0.43∗gender + 0.22∗age + 0.46∗IA (male = 1, female = 2; t=7.01, P<0.01 for sex; t=11.6, P<0.01 for age; and t=6.6, P<0.01 for IA; R2=0.16). The AL in the eye with larger IA was also longer when DIA was larger than 0.5 D (t=2.65, P<0.01). Conclusions. IA was observed to be associated with AL and might be a risk factor of the onset and progress of myopia in school-age children.

scholarly journals Neurodynamic indicators of the sensorimotor response of primary school age children with orthophoria and hetero-tropia

2020 ◽  
pp. 85-90
Author(s):  
O. V. Larionova ◽  
L. V. Dravitsa
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Primary School ◽  
School Age Children ◽  
School Age ◽  
Low Velocity ◽  
Flicker Fusion Frequency ◽  
The Central Nervous System ◽  
The Difference ◽  
Primary School Age

Objective: to analyze the neurodynamic indicators of the sensorimotor response of primary school age children with orthophoria and heterotropia. Material and methods. 51 children (102 eyes) aged 6-11 were examined. 2 groups that could be compared in terms of age and sex were formed. The first group consisted of 20 patients (40 eyes) with orthophoria associated with moderate hypertropia of Hm 3.5 (2.3; 5.3) diopters, the second group included children with concomitant convergent strabismus associated with moderate hypertropia of Hm 4.25 (2.0; 6.5) diopters - 31 patients (62 eyes). To study the properties of the nervous system (NS), the computer appliance «NS-Psychotest» (LLC «Neurosoft», Ivanovo, http://neurosoft. com/ru) was used. The neurodynamic indicators of the sensorimotor response were identified with the techniques «Simple Visual Motor Response» (SVMR), «Discrimination reaction» (DR), «Moving Object Response» (MOR), «Critical Flicker-Fusion Frequency» (CFF). Results. Concomitant strabismus in the children of the second group reliably leads to an increase in the time of SVMR, DR by 65.5 ms and 42.4 ms, respectively (p < 0.05), in comparison with the group of the children with orthophoria. The difference between the indices of DR and SVMR in the children of group 1 - 51.5 ms, of group 2 - 28.4 ms, verifies a decrease of the rate of the neurodynamic processes of the NS in the children with heretotropia. In the study with the MOR technique, the time of response in the first group was - -31 (-127; 50) ms, in the second group - 22 (-29; 94) ms (р = 0.000008), a positive value of the indicator of the response time in the children of the second group is a consequence of the prevalence of inhibition processes in the central nervous system in most the examined patients. Conclusion . The obtained results show that the presence of heterotropia in the children of the second group reliably leads to decreased mobility of nervous processes and predominance of inhibition processes in the central nervous system. The combination of the low velocity of the response and expressed inertness of nervous processes in the children of the second group are indicative of a lack of coordination of the interrelations between the centers of the visual and motor analyzers.

scholarly journals The role of the health saving technologies in the health protection of the primary school age children

2018 ◽  
Vol 7 (6) ◽  
pp. 273-277
Author(s):  
G. V. Beketova ◽  
K. B. Savinova ◽  
O. D. Dybohay ◽  
G. D. Mishcherska
Keyword(s):  
Primary School ◽  
Health Protection ◽  
School Age Children ◽  
School Age ◽  
Primary School Age

scholarly journals Axial length elongation in primary school-age children: a 3-year cohort study in Shanghai

BMJ Open ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. e029896 ◽  
Author(s):  
Tao Li ◽  
Bo Jiang ◽  
Xiaodong Zhou
Keyword(s):  
Regression Analysis ◽  
Cohort Study ◽  
Linear Regression ◽  
Primary School ◽  
Linear Regression Analysis ◽  
School Age Children ◽  
School Age ◽  
The Mean ◽  
Primary School Age

ObjectiveTo investigate the axial length (AL) elongation in primary school-age children during 3-year follow-up period and evaluate the associations of AL elongation with spherical equivalent (SE), AL at baseline, body height and weight.DesignA 3-year observational cohort study from 2014 to 2017.SettingJinshan Hospital of Fudan University in Shanghai.MethodsA total of 452 children successfully completed their measurements in the 3-year follow-up period. The mean age of those children was 6.9±0.7 years, ranging from 6 to 8 years, and 217 (42.7%) were boys. AL was measured with an ocular biometry system. Refractive error was measured using an auto-refractor without cycloplegia.ResultsThe mean changes of ALs were 0.27±0.28 mm, 0.52±0.40 mm and 0.89±0.51 mm over 1, 2 and 3 years, respectively. The mean changes of SEs were −0.27±0.80 D, −0.56±1.00 D and −0.95±1.41 D over 1, 2 and 3 years, respectively. Multivariate linear regression analysis revealed that mean change of AL was associated with mean change of SE at all points (all p<0.001). In addition, linear regression analysis revealed that AL elongation in the 3year follow-up period was associated with AL at baseline (R2=0.009, p=0.045).ConclusionsAL elongation is relatively high in the primary school-age children in Jinshan District, Shanghai. Effect strategies are needed to control AL elongation.

Time-Based Prospective Memory in Schoolchildren

2011 ◽  
Vol 219 (2) ◽  
pp. 92-99 ◽  
Author(s):  
Babett Voigt ◽  
Ingo Aberle ◽  
Judith Schönfeld ◽  
Matthias Kliegel
Keyword(s):  
Primary School ◽  
Prospective Memory ◽  
Age Differences ◽  
Memory Retrieval ◽  
Primary Schools ◽  
School Age Children ◽  
School Age ◽  
Older Children ◽  
Strategic Monitoring ◽  
Primary School Age

The present study examined age differences in time-based prospective memory (TBPM) in primary school age children and tested the role of self-initiated memory retrieval and strategic time monitoring (TM) as possible developmental mechanisms. Fifty-four children were recruited from local primary schools (27 younger children, mean age = 7.2 ± 0.55 years, and 27 older children, mean age = 9.61 ± 0.71 years). The task was a driving game scenario in which children had to drive a vehicle (ongoing task) and to remember to refuel before the vehicle runs out of gas (TBPM task, i.e., the fuel gauge served as child-appropriate time equivalent). Fuel gauge was either displayed permanently (low level of self-initiation) or could only be viewed on demand by hitting a button (high level of self-initiation). The results revealed age-dependent TBPM differences with better performance in older children. In contrast, level of self-initiated memory retrieval did not affect TBPM performance. However, strategies of TM influenced TBPM, as more frequent time checking was related to better performance. Patterns of time checking frequency differed according to children’s age and course of the game, suggesting difficulties in maintaining initial strategic TM in younger children. Taken together, the study revealed ongoing development of TBPM across primary school age. Observed age differences seemed to be associated with the ability to maintain strategic monitoring.

Role of a nurse in the rehabilitation of children using ReviMotion hardware and software complex

2020 ◽  
pp. 49-56
Author(s):  
T. Shirshova
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
School Age Children ◽  
Equipment Management ◽  
School Age ◽  
Rehabilitation Process ◽  
Software Complex ◽  
Trained Personnel ◽  
The Central Nervous System

Disorders of the musculoskeletal system in school-age children occupy 1-2 places in the structure of functional abnormalities. Cognitive impairment without organic damage to the central nervous system is detected in 30-56% of healthy school children. Along with the increase in the incidence rate, the demand for rehabilitation systems, which allow patients to return to normal life as soon as possible and maintain the motivation for the rehabilitation process, is also growing. Adaptation of rehabilitation techniques, ease of equipment management, availability of specially trained personnel and availability of technical support for complexes becomes important.

Sign in / Sign up

Export Citation Format

Share Document